Conditions

I am just wondering if the following condition I have in will work and only fire a bet if this time after a market has gone in play is between 52 and 57:

Market's Minutes Since the Off is between event_off+(mf_minute*52) and event_off+(mf_minute*57)


I also have the setting ticked 'Stop monitoring markets 60.00 mins after the off'

Hi
The condition is:
and selections trigger expression (now_time - event_off)/mf_minute is between 52 and 57

Not sure about the stop monitoring time whether it uses scheduled or actual start time.